12666168 has 24 divisors (see below), whose sum is σ = 34304400. Its totient is φ = 4222032.

The previous prime is 12666167. The next prime is 12666191. The reversal of 12666168 is 86166621.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87888 + ... + 88031.

It is an arithmetic number, because the mean of its divisors is an integer number (1429350).

Almost surely, 2^12666168 is an apocalyptic number.

12666168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12666168 is an abundant number, since it is smaller than the sum of its proper divisors (21638232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12666168 is a wasteful number, since it uses less digits than its factorization.

12666168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175931 (or 175924 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 12666168 is about 3558.9560267022. The cubic root of 12666168 is about 233.1032961895.

The spelling of 12666168 in words is "twelve million, six hundred sixty-six thousand, one hundred sixty-eight".